The cert is from digicert, and both te root and intermediate certs are already installed and expire in 2031 and 2023 respectively. Ive also been on the digicert website and verified that the serial of the installed ones matches the currently available ones. So I was hoping I could simply import a new cert...

The format of the cert is a pfx and I have used openssl to extract both the key and the cert, and tried to import them, and get presented with tte above error.

Based on the error, I assume the system is confirming that the installed root and intermed certs do not match the issued cert? Yet they seem to have been fine the last couple of years, and the certs on digicert website seem to match what we have installed.

I dont know anything about certs, and find it all a bit mind boggling..

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